... : ISO9002 / QS9000 3.Brand or OEM packing Valve role is responsible for input to the engine fuel and emissions We are the ... is frist-class, the price is reasonable. We have advanced management and excellent equipment.We have two kinds of material,the ... (40Cr) ; EXHAUST VALVE IS SUH3(4Cr9Si2). Engine valves are suitable for TOYOTA,AUDI,BESFORD,BMW,CATERILLAR,CUMMINS,DAF,DAIHATSU,DAEWOO,FORD ...